NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1992445068 MD
Verify on CMS → Barry Williamson, MD
Family Medicine Physician in Huntsville, Alabama.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
Barry Williamson, MD is a Family Medicine Physician in Huntsville, Alabama, listed in the federal CMS National Provider Identifier registry.
- Likely
- board-certified (heuristic)
- #9
- Family Medicine Physician rank among Alabama specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
CMS NPPES provider registry desk
NPI 1992445068 · Family Medicine Physician
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-NONE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1992445068
- ENUM-RECENT 2022
- TAX-MEGA 148K Family Medicine
- RX-NONE No Part D
- BOOK-LIGHT 1,856 in Alabama
- PHOTO-ENUM Charles Starling · 2022
✓
Board certification likely (heuristic, not verified)
Barry Williamson, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Barry Williamson, MD?
Quality data not reportedPrimary specialty
Family Medicine Physician
Specialty distribution in Alabama
How Family Medicine Physician compares to other specialties among Alabama providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Medicine Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1992445068 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 03/29/2022 |
Hospital and facility affiliations
Facilities where Barry Williamson, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
According to CMS billing records, Barry Williamson, MD is affiliated with 3 Medicare-billing facilities across 2 states, 1 of which carry a CMS Hospital overall star rating.
Wayne General Hospital
★★★☆☆ 3/5
Waynesboro, MS
Acute Care Hospitals
CMS CCN: 250077
HH Physicians Network
Huntsville, AL
The Valley Foundation
Huntsville, AL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Family Medicine Physician Overview
How Barry Williamson, MD fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Williamson, both outside Alabama so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Alabama
Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as Williamson.
One of 1,856 Family Medicine Physician providers enrolled in Alabama, 5 are shown here.
Dr. Bahaa Abdelqader
DO
Mobile, AL
Dr. Sumayah Abed
MD
Hoover, AL
Dr. Charles Abney
M.D.
Tuscaloosa, AL
Dr. Jennifer Abt
DO
Montgomery, AL
Dr. Dakota Acton Jones
M.D.
Fayette, AL
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Barry Williamson, MD's specialty? ▼
Barry Williamson, MD specializes in Family Medicine Physician and practices in Huntsville, Alabama. Credentials: MD.
Where is Barry Williamson, MD located? ▼
Barry Williamson, MD is located at 301 GOVERNORS DR SW, Huntsville, AL, 35801. Phone: (256) 551-4500.
What is Barry Williamson, MD's NPI number? ▼
Barry Williamson, MD's National Provider Identifier (NPI) is 1992445068, issued on 03/29/2022.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
Does Barry Williamson, MD accept Medicare? ▼
Barry Williamson, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Barry Williamson, MD's credentials? ▼
Barry Williamson, MD's NPI is 1992445068 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.